Square-end clearance milling cutters are designed for machining relief areas, clearance slots, and precision undercuts while maintaining stable cutting performance and clean flat-end geometry. This tool style offers excellent control of relief angles and precise removal of material in tight or restricted areas.
The Clearance Milling Cutter – Square End Geometry is engineered for accurate machining of relief features, clearance pockets, and undercut profiles commonly found in aerospace components, precision molds, valve bodies, and high-tolerance mechanical parts. Its square-end cutting geometry delivers stable tool engagement, predictable cutting loads, and excellent surface quality in both roughing and finishing passes.
Compared with form relief cutters or tapered relief tools, the square-end version provides cleaner step transitions and simplifies dimensional control when machining flat-bottom clearance areas. Aoshiji® Custom Tool supports full customization based on customer drawings, including relief angle, diameter, step configuration, flute length, and shank options, ensuring optimal tool life and machining performance across applications.
Machining of clearance areas and internal relief pockets
Creating flat-bottom relief features in precision mechanical components
Removing material behind critical surfaces to avoid interference
Undercut preparation and controlled material removal in tight-access areas
Relief machining for molds, dies, aerospace brackets, and complex housings
Ideal for steel, stainless steel, aluminum alloys, titanium, brass, and copper
Square-end cutting geometry for stable bottom-surface machining
Precision-ground relief angles for accurate clearance formation
Available in solid carbide, brazed PCD, or coated carbide
Excellent control of relief depth, angle, and profile accuracy
Optimized flute structure for smooth cutting and minimal chatter
Customizable step profiles, diameters, shank designs, and tolerances (±0.01 mm)
High rigidity design for demanding CNC milling operations
Produces accurate relief profiles with flat, stable bottom surfaces
Improves tool life compared to form-relief tools in certain applications
Reduces chatter and tool deflection during deep or narrow clearance cuts
Enhances accuracy and repeatability in tight-tolerance manufacturing
Eliminates manual grinding or secondary rework of clearance features
Fully customizable to match drawing requirements and machining setups
| Parameter | Specification |
|---|---|
| Tool Type | Clearance Milling Cutter – Square End Geometry |
| Cutting Material | Solid Carbide, Coated Solid Carbide, Brazed Carbide, Brazed PCD, Brazed CBN, Solid HSS, Brazed HSS |
| Relief Angle | Custom per drawing |
| Diameter Range | Custom |
| Cutting Length | Custom |
| Shank Type | Cylindrical / Weldon / Custom |
| Coolant Supply | Optional through-coolant |
| Tolerance | ±0.01 mm (application-based) |
| Application Focus | Relief milling, clearance machining, undercut processing |
Adjustable relief angles and flat-end geometries
Solid carbide, brazed PCD, or coated carbide construction
Extended-length or slim-profile options for deep clearance areas
Optional step-down geometry for multi-stage relief machining
Coolant-through capability for improved chip evacuation
Coating options: TiAlN, AlTiN, DLC, or application-specific
Customized profiles based on 2D/3D CAD drawings
For drawings, customization details, or quotations:
[email protected]
Aoshiji® Custom Tool – Engineering-Driven Precision Cutting Solutions
Related machining solutions and tools commonly used for flat-bottom relief milling, precise clearance machining, and sharp step transitions include:
PCD Corn Milling Cutter Ø16 mm
PCD Slot Milling Cutters
PCD Form Milling Cutter
PCD Bottom Radius Form Milling Cutter
Custom PCD Milling Tools
